House Extensions / Planning Services

No Planning Permission.
No Professional Fee.

A complete architectural design and planning service for your residential extension, with a fixed professional fee payable only when planning permission is granted.

Architect-Led
Service

Pay Only
Upon Approval

FIXED PROFESSIONAL FEE £2,995 Single-storey or double-storey extension

Complete
Planning Service

One Price.
Any Extension.

No planning permission, no professional fee. Subject to eligibility and agreed terms.

✓

One Price. Any Extension.

A fixed £2,995 professional fee for eligible single-storey and double-storey extensions.

£

Pay Only Upon Approval

Our agreed professional fee becomes payable only when planning permission is granted.

⌂

Architect-Led Service

Architectural design, planning drawings, application submission and ongoing advice.

One Price. Any Extension.

Single-storey or double-storey extensions

Our fixed professional fee applies to a wide range of residential extension types, subject to an initial project assessment.

Single Storey
Extension
Double Storey
Extension

One Price. Any Extension.

Our £2,995 professional fee applies to both single-storey and double-storey extensions across a wide range of extension types.

Designed Around Your Ambition

We do not want the package to limit your ideas. Our aim is to explore the possibilities and create an inspiring design that works within your budget.

What's Included

A Complete Architectural Service

Professional support from initial survey and design through to planning determination.

⌂

Measured House Survey

A full measured survey of your property to establish accurate existing drawings.

✎

Architectural Design

Tailored design proposals developed around your needs, ambitions and budget.

▤

Planning Drawings

Existing and proposed architectural drawings required for the application.

✓

Planning Application

Preparation and submission of the agreed planning application to the local authority.

◎

Planning Officer Liaison

Acting as your planning agent and responding to planning officer queries.

✦

Design Revisions

Reasonable design amendments during the agreed planning process.

Our Process

How It Works

A straightforward architectural and planning process with an agreed fee payable only upon planning approval.

1

Initial Consultation

We review your property, requirements and the planning prospects of your proposed extension.

2

Design Development

We carry out the agreed survey, develop the design and prepare planning drawings.

3

Planning Application

We submit the application and liaise with the local planning authority throughout determination.

4

Planning Decision

If permission is granted, the agreed £2,995 professional fee becomes payable. If refused, no professional fee is due under the agreed guarantee.

✓

NO PLANNING
NO FEE

Our Guarantee

Your Planning Fee Assurance

We are confident in the quality of our architectural designs and the professional planning advice we provide.

For an eligible project accepted under this package, our fixed professional fee of £2,995 becomes payable only when the agreed planning permission is granted.

If the application is refused, you will not be charged our professional fee, subject to the terms of your appointment.

View Guarantee Terms
Important Information

Guarantee Terms & Conditions

The following is a summary of the proposed package conditions. The precise contractual terms will be confirmed in writing before appointment.

  1. The package applies to an eligible residential extension accepted by Consultant Line Architects Ltd following an initial assessment.
  2. The fixed professional fee is £2,995 inc VAT.
  3. The agreed professional fee becomes payable only following the grant of planning permission for the agreed extension proposal.
  4. If the agreed application is refused, no professional fee is payable under this package, subject to the signed appointment terms.
  5. Local authority application fees, mapping, specialist surveys, engineering services and other third-party charges are separate unless expressly included.
  6. Building Regulations drawings, Building Control applications, structural engineering and construction-stage services are not included unless agreed separately.
  7. Material changes to the agreed brief, withdrawal of the application, client cancellation or failure to provide necessary information will be addressed in the appointment terms.
  8. Planning permission remains at the discretion of the relevant local planning authority. Approval itself cannot be guaranteed.
Alternative Architectural Packages

Looking for a More Affordable Planning Package?

Explore our range of House Extension Packs, with professional architectural services starting from just £1,045 for single-storey and double-storey extensions.

View House Extension Packs

Ready to Plan Your House Extension?

Speak directly with an architect about your extension and find out whether your project qualifies for our No Planning, No Fee package.

Request a Consultation

020 3300 3561 · info@consultant-line.com